Ipomoea imperati |
Ipomoea nil |
|
---|---|---|
beach morning-glory |
ivy morning glory, Japanese morning glory, whiteedge morning-glory |
|
Habit | Perennials. | Annuals. |
Stems | repent, rooting at nodes and underground. |
twining. |
Leaf | blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous. |
blades cordate, ± orbiculate, ovate, or 3-lobed, 50–150 × 20–140 mm overall, base cordate, surfaces sparsely hirsute to sericeous. |
Peduncles | glabrous. |
hairy, hairs retrorse. |
Flowers | sepals lance-oblong, 10–15 mm, outers shorter than inners, ± coriaceous, apex acute to obtuse, abaxial surface glabrous; corolla white, throat usually yellow, sometimes purplish inside, funnelform, 25–50 mm. |
sepals lance-linear, 15–25(–30) mm, herbaceous, proximally narrowly ovate, densely hispid, gradually narrowed to ± straight, hispid to strigose or glabrate distal portion longer than ovate base; corolla usually blue to purplish, sometimes red or white, tube white or yellow inside, funnelform, (20–)30–60+ mm. |
2n | = 30. |
= 30. |
Ipomoea imperati |
Ipomoea nil |
|
Phenology | Flowering year-round. | Flowering Jul–Dec. |
Habitat | Beaches, dunes. | Abandoned plantings, fields, thickets. |
Elevation | 0–10 m. (0–0 ft.) | 10–2200 m. (0–7200 ft.) |
Distribution |
AL; FL; GA; LA; MS; NC; SC; TX; HI; Mexico; Central America; South America; West Indies [Introduced in Europe, Asia, Africa, Australia]
|
AL; KY; LA; MD; MS; NC; OK; SC; TN; TX; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia]
|
Discussion | Ipomoea imperati was collected once in Pennsylvania (on ballast in 1865). The names I. littoralis (Linnaeus) Boissier 1875, not Blume 1826, and I. stolonifera (Cirillo) J. F. Gmelin are illegitimate; both have been misapplied to plants of I. imperati. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Reports of Ipomoea nil from California are based on misidentified material of I. hederacea. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Ipomoea | Convolvulaceae > Ipomoea |
Sibling taxa | ||
Synonyms | Convolvulus imperati | Convolvulus nil, Pharbitis hederacea, P. nil |
Name authority | (Vahl) Grisebach: Cat. Pl. Cub., 203. (1866) | (Linnaeus) Roth: Catal. Bot. 1: 36. (1797) |
Web links |